Mode Selector

WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Mode selector knob controls a vacuum-operated rotary selector valve. Mode selector routes engine vacuum to operate air delivery door actuators, providing desired air distribution. It also allows for selection of air conditioning or heating functions. See Figure. Mode selector knob positions are OFF, A/C, MAX A/C, BI-LEVEL A/C, VENT, BI-LEVEL, FLOOR, MIX-BLEND, and FRONT DEFROST. See FRONT HVAC MODE POSITIONS .